CN201454290U

CN201454290U - A kind of anti-dust and ash output device of bag filter

Info

Publication number: CN201454290U
Application number: CN2009201034527U
Authority: CN
Inventors: 毛建新; 谷群田; 孙启飞
Original assignee: Xingtai Iron and Steel Co Ltd
Current assignee: Xingtai Iron and Steel Co Ltd
Priority date: 2009-06-26
Filing date: 2009-06-26
Publication date: 2010-05-12
Anticipated expiration: 2019-06-26

Abstract

The utility model provides a sack cleaner dustproof goes out grey device, belongs to dust collecting equipment technical field for produce the secondary raise dust when thoroughly eliminating the ash, its technical scheme is: the dust collection device comprises a dust discharge chute, a pneumatic gate valve and a dust collection cover, wherein the dust discharge chute is a cylindrical closed pipeline, the upper end of the dust discharge chute is fixed on an outlet flange of a spiral conveyor of a bag-type dust collector, the outlet of the lower end of the dust discharge chute is opposite to a dust groove of a transport vehicle, the pneumatic gate valve is arranged at the position, close to the outlet, of the lower part of the dust discharge chute, the dust collection cover is arranged below the dust discharge chute, and an opening cover below the dust collection cover is arranged above the dust groove of the transport vehicle. The dust is conveyed into the dust groove of the transport vehicle through the closed dust chute, so that the flying in the air is greatly reduced, and the environmental pollution is avoided; the dust collecting cover and the air suction pipe can collect secondary dust generated above the transport vehicle during dust discharge, and the possibility of pollution is reduced. Simple structure and good dust removal effect.

Description

A kind of sack cleaner is prevented the airborne dust ash discharging gear

Technical field

The utility model relates to the sack cleaner that a kind of metallurgy industry uses, and belongs to the cleaner technical field.

Background technology

In industry production such as metallurgy, a large amount of dust arresters has been installed with the protection environment.These dust arresters comprise that fiber bag precipitator, electric cleaner, dry collector etc. are multiple, have all given play to enormous function at the different parts of smelter.Fiber bag precipitator is the equipment of comparative maturity in the various dedusters, uses more extensive.In use the user finds, reentrainment of dust is serious during the fiber bag precipitator ash discharge, dedusting ash in the two-layer platform ash bucket directly is discharged on the haulage vehicle that is parked in ground, owing to do not suppress the technological means of airborne dust, the dust drop is big, reentrainment of dust is serious, and a large amount of dust in the ash discharging chamber escape to outward in the air, cause environmental pollution.A kind of ash discharge equipment that prevents airborne dust is also arranged in the market, but complex structure, operating cost height, fault rate height, operation inconvenience are difficult to obtain user's approval.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of dustproof ash discharging gear of sack cleaner that produces reentrainment of dust can thoroughly eliminate ash discharge the time.

The technical scheme that solves the problems of the technologies described above is:

A kind of sack cleaner is prevented the airborne dust ash discharging gear, it is made up of ash discharge chute, pneumatic push-pull valve, airborne dust fume trap cover, the ash discharge chute is cylindric closed conduit, its upper end is fixed on the outlet(discharge) flange of conveying worm of sack cleaner, the lower end outlet is relative with the ash-pit of haulage vehicle, pneumatic push-pull valve is installed in the position of the bottom of ash discharge chute near outlet, below the ash discharge chute, also has the airborne dust fume trap cover, there is the circular hole that the ash discharge chute is passed in airborne dust fume trap cover central authorities, the lower opening of airborne dust fume trap cover, opening cover on the ash-pit top of haulage vehicle.

Above-mentioned sack cleaner is prevented the airborne dust ash discharging gear, and aspiration channel also has been installed between airborne dust fume trap cover and dust-removing box, and the lower ending opening of aspiration channel stretches in the space that the airborne dust fume trap cover covered, and the upper end of aspiration channel is inserted in the dust-removing box.

Above-mentioned sack cleaner is prevented the airborne dust ash discharging gear, and electric butterfly valve has been installed on aspiration channel, and pneumatic push-pull valve and electric butterfly valve are by the chain control of control cabinet.

The utility model has the advantages that: dust is transported in the ash-pit of transport vehicle by airtight ash discharge chute, has significantly reduced aerial flying upward, and has avoided environmental pollution; The reentrainment of dust that airborne dust fume trap cover and aspiration channel produce above haulage vehicle in the time of can be with ash discharge is collected, and sends back in the dust-removing box, has more reduced the possibility of polluting; Pneumatic push-pull valve and electric butterfly valve can play an effective role in the control.The utility model is simple in structure, processing ease, trouble point are few, easy care, low, the good dedusting effect of operating cost.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Mark is as follows among the figure: sack cleaner 1, ash discharge chute 2, pneumatic push-pull valve 3, airborne dust fume trap cover 4, aspiration channel 5, electric butterfly valve 6, hang steel wire rope 7, aspiration channel pillar 8, dust-removing box 9

The specific embodiment

The utility model is a kind of anti-airborne dust ash discharging gear of sack cleaner, mainly is made up of ash discharge chute 2, pneumatic push-pull valve 3, airborne dust fume trap cover 4, aspiration channel 5, electric butterfly valve 6 and control system.

Show among the figure, ash discharge chute 2 is fixed on the outlet(discharge) flange of conveying worm of sack cleaner 1, dedusting ash in the sack cleaner 1 is drawn to get off by ash discharge chute 2, control by the pneumatic push-pull valve 3 that is installed in ash discharge chute 2 bottoms, reduce the ash discharge drop, operated pneumatic push-pull valve control ash discharge by operating personnel during ash discharge.Also have airborne dust fume trap cover 4 below ash discharge chute 2, the airborne dust fume trap cover is hung in the ash-pit top of haulage vehicle by hanging steel wire rope 7, and the ash discharge chute passes the airborne dust fume trap cover to the haulage vehicle ash discharge.The reentrainment of dust that produces during ash discharge is collected by the airborne dust fume trap cover 4 of haulage vehicle top, and two aspiration channels 5 are installed between airborne dust fume trap cover 4 and the dust-removing box 9, and they are supported by aspiration channel pillar 8.Because in the dust-removing box 9 is negative pressure, two aspiration channels of airborne dust fume trap cover top have played the effect of air draught, and two aspiration channels 5 insert in the dust-removing box 9 of top after gathering above the platform.Like this, the reentrainment of dust of ash discharge process generation is just sent in the main dust pelletizing system by airborne dust fume trap cover 4 and aspiration channel.Be energy savings, anti-locking system flogs a dead horse, and the gathering on the pipeline of aspiration channel 5 electric butterfly valve 6 is installed and is controlled, and whole ash discharge and air draught process are controlled easy-to-operate by the control box that is installed in following one deck.

Claims

1. An anti-dust and ash discharge device for a bag filter, characterized in that it consists of an ash discharge chute [2], a pneumatic flapper valve [3], and a dust collection cover [4]. The ash discharge chute [2] is Cylindrical airtight pipe, its upper end is fixed on the outlet flange of the screw conveyor of the bag filter [1], the lower end outlet is opposite to the ash chute of the transport vehicle, and the pneumatic flapper valve [3] is installed in the ash discharge chute [ The lower part of 2] is close to the exit, and there is a dust collection cover [4] under the ash discharge chute [2], and there is a round hole in the center of the dust collection cover [4] through which the ash discharge chute [2] passes. The bottom opening of the flying dust collection cover [4], the opening cover is above the ash tank of the transport vehicle.

2. The anti-dust and ash output device of the bag filter according to claim 1, characterized in that: a suction pipe [5] is installed between the dust collection cover [4] and the dust removal box [9], The lower end opening of the air duct [5] stretches into the space covered by the dust collection cover [4], and the upper end of the air suction duct [5] is connected to the dust removal box [9].

3. The anti-dust and ash output device of the bag filter according to claim 2, characterized in that: an electric butterfly valve [6] is installed on the suction pipe [5].